Improvement in anti-friction journal-bearings



N.PETERS, PHOTO-LITHUGRAFHER. WASHINGTON D C Io all whom @t may concern:

dirti-1211r gratta R. Gr. HATFIELD, OFNEW YORK, N. Y.

Lette/rs Patent No. 99,566, dated February 8, 18,70. d

IMPRO'VEMENT IN ANTI-FRICTION JOURNAL-BEARIN GS.

The Schedule referred to r11-these Letters Patent and making part of the same.

Re it known that I, R. G. HATFIELD, of the city, county, and State of New York, have invented a new and usefulv Improvement in -Anti-Friction Journal- Bearings; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification.

This invention relates to a new'and useful improvemeut in journal-bearings, whereby the journal is re-V lieved of frictional or rubbing contact, and revolves on 'a moving surface; and

The invention consists in a revolving ring, (upon which the journal rests,) supported by a series offriction rolls in arevolvingV frame, arranged and operating 'as hereinafter more fully described.

In the accompanying drawing- Figure 1 represents -a side view (partly in section) of the arrangement.

Figure 2 is a top view.

Similar letters of reference indicate corresponding parts.

In this example of my invention, I show a pulley on a shaft, the journals of which revolve on my anti-friction bearing, and according to my invention.

This arrangement is more especially designed for journals which -ha-ve a continuous rotating motion in crie direction; but I do not confine myself to any p articular application, as the device is adapted to a reciprocating rotary motion, or to journals, the rotary rno-V tion oi' which is reversed, as in pulleys or wheels of hoistingmachines, as well as to journals which have a lcon'tiuuousrotary motion in one direction'.

A represents the pulley.

B, the journal.

C, the bearing-ring, upon which the journal rests, which ring is revolved by the rolling Contact of the journal.

D, the revolving frame, composed of. two annular plates'e e, connected together by rods or pins f.

g, frictionrolls,.which revolve ,freely on these rods or pins f.

. H is a support, upon which the frame'D revolves.

The plates e project slightly beyond the frictionrolls, and when the revolving frame is on the stand,

as represented, the plates e e project on each side ot' the stand, so that the bottom of the frame is kept in place on the stand, and the rolls only areallowed to bear upon it.

I represents a guide-stand for the journal, which is rigidly attached to the stand H, as seen in the drawing. The journal revolves in the slot in the stand, and lateral movement of the journal is thereby prevented.

Directly'beneatlr the centre of the revolving frame D, there isan indentation or recess rnade in the bearing-surface of the stand or support H, on which the r'olls run, as seen at J, in dotted lines. This recess relieves the roll directly under the journal from pressure on the stand, and transfers the weight at Vthat point to the two rolls on each side of thev centre. Relieving the roll directly beneath the journal of' a bear'- ing, in this manner, allows `the frame to revolve with a smooth and uniform motiomand prevents the rocking and jerking, which is so destructive to friction jourualboxes, as ordinarily constructed.

A journal-bearing constructed in this manner re` quires no lubrication. There is no rubbing orfrictional surface; the journal is revolved on a' moving surface and by. rolling contact; the traction thus produced on the bearing-ring and the friction-roll frame revolves both the frame and the bearing-ring.

By this arrangement, journals of every description, especially the journals of heavy shating, maybe almost entirely relieved of friction, thus greatly reducing the power ordinarily required for driving machinery.

j Having thus described my invention,

I claim as new, and desire to secure -by Letters Patent-- 1. In combination with ajournal, `the revolving bearing-ring C, arranged and operating substantially as and for the purposes described. 2. The revolving friction-roll frame I), in combination with the bearing-ring G and journal B, arranged -and operating substantially as and for the purposes set forth.

3. The stand H, guidestandI, friction-Troll frame D,- andbearing-ring C, in combination with a journal, substantially for the purposes described.. 4. In the construction of the anti-friction journalbox, the recess J, or its equivalent, operating in conjunction with vthe friction-rolls, substantially as herein shown and described.

' Witnesses: R. G. HATFIELD. FREDERIC H. BETTs,

JOSEPH FETTRETOH. 

